20846011 has 4 divisors (see below), whose sum is σ = 20872224. Its totient is φ = 20819800.

The previous prime is 20846009. The next prime is 20846017. The reversal of 20846011 is 11064802.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20846011 - 2¹ = 20846009 is a prime.

It is a super-2 number, since 2×20846011² = 869112349224242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20846017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11875 + ... + 13516.

It is an arithmetic number, because the mean of its divisors is an integer number (5218056).

Almost surely, 2^20846011 is an apocalyptic number.

20846011 is a deficient number, since it is larger than the sum of its proper divisors (26213).

20846011 is an equidigital number, since it uses as much as digits as its factorization.

20846011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26212.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 20846011 is about 4565.7432034664. The cubic root of 20846011 is about 275.2164070675.

The spelling of 20846011 in words is "twenty million, eight hundred forty-six thousand, eleven".